Mattress sag compensation insert



FIG. 1 is a perspective view of a mattress sag compensation insert showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof, the opposing side view being identical;

FIG. 4 is an end elevational view thereof, the opposing end view being identical;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a cross-sectional view thereof as taken along line 6-6 of FIG. 5;

FIG. 7 is another cross-sectional view as taken along line 7-7 of FIG. 5; and,

FIG. 8 is another cross-sectional view as taken along line 6-6 of FIG. 5.

Broken lines are used to illustrate features that do not form part of the claimed design. 

CLAIM The ornamental design for a mattress sag compensation insert, as shown and described. 